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MM_VIV
用无网格法计算VAN DE POL 振子(calculate van de pol oscillator by using meshless method)
- 2009-04-26 20:17:19下载
- 积分：1
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energy-leakage--dual-tree
首先根据高斯白噪声频率充满整个频带的特性，通过双树复小波包变换对高斯白噪声进行分解，利用频带能量泄漏的定量分析方法，验证了双树复小波包变换具有较低的频带能量泄漏特性；其次利用双树复小波包变换逐层分解信号，对每层分解所得分量求其FFT谱的峭度，得到基于双树复小波包变换的谱峭度图，根据图中峭度最大的原则，可以自动准确的选择信号分解最佳层数和最佳分量；最后将基于双树复小波包变换的谱峭度图的故障诊断方法应用于实际工程中，对齿轮故障振动信号进行分析，选择最佳分解层数和分量后利用希尔伯特包络解调，有效准确地提取了故障特征信息，验证了方法的可行性和有效性(The parameters of a filter were determined by experience, and that has a great influence on the
results of signal processing. The discrete wavelet packet transform has a larger energy leakage of frequency band,
which obviously affected the results of the envelope demodulation. It is necessary to have a method with a lower
energy leakage of the frequency band before envelope demodulation. The dual tree complex wavelet packet
transform (DT-CWPT) was a new signal processing method that had many good qualities. Because the energy
leakage of the frequency band was smaller when the signal was decomposed by a dual tree complex wavelet
packet transform, the dual tree complex wavelet packet transform was used to extract the fault feature information
in the field of fault diagnosis. In this paper, first, according to the characteristics of Gaussian white noise, whose
frequency was full of the whole frequency band, Gaussian white noise was decomposed by a dual-tree complex
wavel)
- 2014-05-28 17:13:41下载
- 积分：1
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opimize-code
设计迭代、有限差分法、有限元的matlab优化计算程序(Matlab design iterations, finite difference method, finite element calculation program optimization)
- 2021-04-08 15:59:00下载
- 积分：1
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Logistic-Regression
使用梯度下降法、随机梯度下降法和牛顿法实现的逻辑回归算法。(Using a gradient descent method, stochastic gradient descent algorithm logistic regression method and Newton' s method to achieve.)
- 2021-01-03 16:48:55下载
- 积分：1
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生活垃圾转运站选址lingo 求解编程
说明： 二级转运站选址数学规划模型求解的lingo 程序(Lingo Program for Solving Mathematical Programming Model of Secondary Transfer Station Location)
- 2020-06-16 14:20:01下载
- 积分：1
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paixu
1.数据时随机产生的（产生1000个随机数），进行排序2.每一次数据排序之后，都可以看到排序的移动，交换次数以及排序的时间。
(1. After randomly generated data (generated 1000 random numbers), every sort 2. Sort the data, you can see the sort of move, switching times and sort of time.)
- 2015-03-24 19:17:40下载
- 积分：1
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python-Machine-learning-master
一个机器学习的python文件，里面拥有各种机器学习方法，可以供大家参考(A Python file for machine learning, which has various machine learning methods, can be used for your reference.)
- 2019-04-17 15:21:41下载
- 积分：1
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Dieselengine
一个柴油机模型，能计算柴油机的油耗率，扭矩(a diesel engine modle)
- 2021-01-11 11:18:49下载
- 积分：1
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ModelC_pure
说明： 相场法材料计算的model C-pure对应的基础相场计算代码，初学者可取(The phase field calculation code corresponding to the model C-pure calculated by the phase field method material is suitable for beginners.)
- 2021-01-14 22:48:46下载
- 积分：1
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1
说明： Fractal分形，简短的代码，清晰可用(Fractal)
- 2010-09-22 18:49:09下载
- 积分：1
